Apparatus for casting steel wheels



Feb. 6, 1923.

' c. WALTHER. APPARATUS FOR CASTING STEEL WHEELS. FILED JUNE 5, 1920.

3 SHEETS'SHEET I uvmwm 650ml; WALTHER ATTORNEY Feb. 6, 1923.

" G. WALTHER.

APPARATUS FOR CASTING STEEL WHEELS.

- 3 SHEETS-SHEET 2 1 LED JUNE 5. 1920 INVENTOR' $507? WALTHER 'Jl AMMQW Feb. 6, 1923,

G. WALTHER. APPARATUS FOR CASTING ST EEL WHEELS, FILED JUNE 5, 1920. 3 SHEETS'SHEET 3 1.. W I u r v 1... 1 v 4 I. a w

INVENTOR. GEORGE BY Z MLTHEF rwwg A TTORNEYS.

Patented Feb. 6, 1923.

anonon WALTHER, or nnrronyomo, ASSIGNOR 'ro THE DAYTON STEEL roo n'nen COMPANY, OF DAYTON, OHIO, A CORPORATION OF OHIO.

APPARATUS FOR CASTING STEEL WHEELS.

/ To all it concern."

e it known that I, Gannon WALTHER, a'

'citizen of the United States, residing .at

Dayton, in the county of Montgomery and State of Ohio, have invented certain new and useful Improvements in Apparatus for Casting Steel Vheels, of which the following is a specification. reference being had therein to the accompanying drawing.

My invention relates to casting steel wheels, and in particular .to a method and apparatus for this purpose.

My apparatus and method are directed to meeting the problem of quantity production of cast steel wheels, primarily for automotive equipment. In order to facilitate this production, I have found it essential to reduce the number of operations in'making the cores-and to provide a ready means for assembling and disassembling the cores. It is also an object of my invention to use cores of either green or dry sand. It is possible by my invention to use green sand eutirely for the cores, forming the spokes and rim. It is another object of my invention to provide a method of manufacture which shall reduce the necessity for the employment of skilled labor in casting wheels of this character.

Referring to the drawings, Figure 1, is a plan view of the supporting arbor, and the cores;

Fig. 2, is a plan view of a core carrying frame used for adjusting the units of the core in position; i

Fig. 3. is a side elevation of a vertical section showing the cores in osition prior to the casting of the wheel Wit the core carrying frame positioning the cores; and

Fig. 1, is a view of a flask with the cores in position, showing in section the supportmg: arborsfor the cores.

eferrmg to Figure 1. it Will be observed that there is an outer ring 1 divisible at points 2--2 into segments, a complete set. of segments completing the circle. To each segment of the ring is connected at an angle thereto the arbor 3 withprojections 4 thereon to support the sand of the rim and spoke core 5. The bridges of the metal wheel formin a part of its outer rim are seen at 66 w ile'the inner wall of the rim is at 7. The wall of the spokesis s. The 'hub core is at 9, supported b the arbor 10. The

arbor 10- of the hub an the arbor 3 of the spokes are connected to one another at 11 in any suitable manner.

The core for the spokes and rim and the hub is supported by the arbor 3 and is made up either of green or dry sand, with the arbor 3 imbedded therein. 12 is a hook attached to the segment of the supporting frame, the use of whichwill be described in connection with Figures 2 and 3.

Referring to Figure 2. we see an annular carrying frame 13 with handles 14514. Across the frame are braces and supporting members 15. Centrally located is a clamping hook 16 rotated and thereby depressed or elevated by the hand whe'el 17. lihe purpose of this hook is to clamp the arbor 10 and the arbors 3 to the frame 13, as will be more clearly seen in Figure 3. Above the members 5 is a central spacing block 18 which serves to assist in clamping the cores and their arbors in position. Un the perlphery of the ring 13, in Figure 2, will be seen another clamping hook 19 and its hand wheel 20 which is used to clamp in position the ring 1 seen in section in Figure 3. The hook 19 engages with the hook 12 on the ring 1 so that the clamping can be readily effected by rotating the wheel 20. Only one of these hand Wheels and hooks on the periphery of the ring 13 is shown. Correspending wheels are located on this ring for the other spokes depending upon the atively unskilled labor to quickly position the respective elements of the cores, to utilize green sand and upon the casting of the wheel to withdraw the rings and the spoke arbors for use at another time. The hub arbor becomes an integral part of the wheel and is brokenaway upon the completlon of the casting. The only loss is the hub arbor, new ones of which are employed for each of the castings. u

In Fig. 4, is shown a flask, cores, etc., in

section. It illustrates also the method of connection between the spoke arbor and the .hub-arbor. In one instance it is adjustablecure by Letters Patent, is

1.'In an apparatus for moulding, a plurality of segments constituting a circular body, an arbor attached to each of said segments, the inner ends of each of said arbors being adapted to embrace a central hub arbor, and a hub arbor. 7

2. In an apparatus for moulding aplurality of. segments constituting a circular bod an arbor attached to each of said segments,'the inner ends of each of said arbors being=adapted to embrace a central hub arbor, a hub'arbor, means on each of said segments'for clampin them in position and means on said hub 3.1%01 for clamping it inposition,

3, In an' apparatus for moulding, a plurality of segmental sections, an arbor attached to each of. said sections projecting inwardly to a common center, a plurality of projections on said arbors, means on the inner end of saidarbors to engage a hub arbor, a hub arbor and a plurality of d'eT out the length of said arbor and means on the inner end thereof for engaging a hub arbor, a hook attached to said segment on the inner side thereof, a core surrounding said arbor and adjacent to said segment, a hub core and a hub arbor therein cooperat: ing with the spoke arbor whereby the spoke arbor positions the hub arbor and core.

5. In an apparatus for molding, a plurality of segments constituting a circular body, an arbor attached to each of said seg-- ments, the inner ends of each of said arbors being adapted to embrace a central hub arbor, a hub arbor, and cores carried by said segments and said arbors.-

In testimony whereof, I affix my signature.

GEORGE WALTHER, 

